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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/jit-test/tests/proxy/bug-862848-1.js
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit-test/tests/proxy/bug-862848-1.js')
-rw-r--r--js/src/jit-test/tests/proxy/bug-862848-1.js24
1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/proxy/bug-862848-1.js b/js/src/jit-test/tests/proxy/bug-862848-1.js
new file mode 100644
index 0000000000..870b5632c3
--- /dev/null
+++ b/js/src/jit-test/tests/proxy/bug-862848-1.js
@@ -0,0 +1,24 @@
+// obj.hasOwnProperty(id), Object.getOwnPropertyDescriptor(obj, id), and
+// Object.defineProperty(obj, id, desc) do not look at obj's prototype.
+
+var angryHandler = new Proxy({}, {
+ has: () => true,
+ get: (t, id) => {
+ throw new Error("angryHandler should not be queried (" + id + ")");
+ }
+});
+var angryProto = new Proxy({}, angryHandler);
+
+var obj = Object.create(angryProto, {
+ // Define hasOwnProperty directly on obj since we are poisoning its
+ // prototype chain.
+ hasOwnProperty: {
+ value: Object.prototype.hasOwnProperty
+ }
+});
+
+assertEq(Object.getOwnPropertyDescriptor(obj, "foo"), undefined);
+assertEq(obj.hasOwnProperty("foo"), false);
+Object.defineProperty(obj, "foo", {value: 5});
+assertEq(obj.hasOwnProperty("foo"), true);
+assertEq(obj.foo, 5);